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Is specialized in designing, manufacturing for power transformers ,furnace transformers and reactor.

Type WDT4 single phase tap changer(delta connection) 1
Type WDT4 single phase tap changer(delta connection) 2
Type WDT4 single phase tap changer(delta connection) 1
Type WDT4 single phase tap changer(delta connection) 2

Type WDT4 single phase tap changer(delta connection)

This kind of switch applies to the single-phase combination oil-immersed transformer electrical power with rated voltage of 10KV-36KV, rated current of 63A-250A; the voltage-regulating mode are: central part, terminal point ncutral point, which can be dircctly fixed on the tank cover of the transformer, exchange under the off-circuit condition.

 

Type WDT4 single phase-tap changer(delta connection)

- Used in mineral oil or silicon oil

- Rated Voltage 10KV-36KV

- Rated current from 63A-250A

- Tapping position: 3-7

- Regulation 2.5% per position

 

Model Explanation 
WST □ - □/□-□X□

W: off-circuit
S : three-phase or D for single phase
T : linear type tap changer
□: voltage regulation model
□: rated current
□: rated voltage
□: number of tapping heads
□: number of tapping position

Voltage Regulation Model
I : terminal point
II : central point
III : neutral point
IV : Y-△ conversion
V : series-parallel connection

Our Advantage

* High pressure capability
* Strong anti-aging ability
* Strong anti-lightning impact
* Strong protection
* Use smoothly
* Stable use

Rated
voltage
Rated
current
L L1 L2 L3 L4 L5 N H H1 Reaulatin
position
10kV 63A 270 147  113 67 99 24 3 100 78 Central
125A 290 162  118 67  107 29 3 100 78
250A 290 162  118 67  112 29 3 100 78
36kV 63A 338 215  114 67  103 24 3 120 98
125A 380 228  128 67  107 34 3 120 98
250A 380 228  128 67  112 34 3 120 98
10kV 63A 366 195  161 67 99 24 5 100 78
125A 405 221  175 67  107 29 5 100 78
250A 405 221  175 67  112 29 5 100 78
36kV 63A 441 266  166 67  103 24 5 120 98
125A 516 296  196 67  107 34 5 120 98
250A 516 296  196 67  112 34 5 120 98
10kV 63A 462 239  209 78  110 24 7 100 78
125A 528 279  239 78  118 29 7 100 78
250A 528 279  239 78  123 29 7 100 78
36kV 63A 532 314  209 78  114 24 7 120 98
125A 588 329  234 78  123 29 7 120 98
250A 588 329  234 78  128 29 7 120 98

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